Wil Wheaton isn't just some guy from Star Trek or The Big Bang Theory. He's an ambassador for the world of board gaming. He's been through two seasons of his show TableTop for Geek&Sundry, and he's been teaching the world to play games.

Bob Calhoun's got a new book out called Shattering Conventions: Commerce, Cosplay, and Conflict on the Expo Floor, and we thought we would pick his brain about the crazy world of fan boys and girls, expos, trade show and conventions.